This is what I will call the final render, with caustics, LuxCore 2.3 rendered
Only the vignette effect is post production.
Totally created and modeled in Blender 2.83 alpha
Design by Damien Rohrbach. The other renders are a mix between diferent renders, some made with CYCLES and others made with LUXCORE.
This 3d model is ready for 3D print. Jewel will be made in rose gold, diamonds and pink tourmalines.
I made this montage I mixed something like 20 images to achieve the ocean view for the shrimp, hope it works ok
Scaled down images
Also made the back view (the back is "obviously hollow for weight reduction purpose and aesthetical reasons)
Full image BACK SIDE